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There are several possible causes of a noisy Koralia. First check and make sure that the black and white washers are still in the unit. The black washer fits down inside the motor chamber. The white washer sits on the backside of the impeller. Make sure the shaft is clean, smooth and straight. It should not be attached to the impeller. Make sure the impeller is attached to its magnet and that the blades are undamaged. Finally, make sure that the front cover is installed correctly.
While the original Koralias 1, 2, 3 and 4 are not designed for use on wavemakers, there are some models of Koralias that are designed for such operation. The Koralia Evolutions, Koralia Magnums and Koralia Nanos are all designed to operate either continuously or on wavetimers.
There are 3 possible causes of reduced waterflow from the Koralia Nano.
All Hydor products come with a 2 year manufacturer warranty. If you have a warranty issue, then you need to contact Hydor Customer Service.
The Koralia Magnum impeller rides on 2 bushings. If the bushings are stuck to the magnetic shaft, then the impeller will not spin. Unplug the unit and remove the impeller to clean the bushings. One is located near the top on the impeller and is hidden by the black wing. The second contacts the bottom of the magnet. Once the bushings are clean, reinstall everything and plugg the unit back in.
The magnum Koralia has a safety feature that prevents the unit from powering up when the impeller is impeeded. You need to unplug the unit, clear teh obstruction and plug the unit back in.
Yes. The Koralia Evolutions are designed for use on wavemakers.
Yes. Like the Koralia Evolutions and Magnums, the Koralia Nano 240 and 425 are designed to handle operation on wavemakers and timers.
There are several possible causes of reversal in the Koralia Evolution.
Yes. You may hear a slight clicking sound when the Koralia Evolution starts-up. This is caused by the impeller resetting itself by hitting the rubber bumper on the inside of the front cover. Removal of the bumper will prevent this noise but, without the bumper the Koralia Evolution can run in reverse.
There are PDF copies of all the instruciton manuals of all the products made by Hydor available at Hydor.com.
There are a few things to check that could cause the Ario to stop producing bubbles.Make sure the airline is above the water level and that there is not a blockage of the line. Also make sure the black connection point for the airline is clean and clear.Make sure there is not an obstruction to the impeller. Sand and really small gravel may make it into the impeller and jam it up. Clear any obstructions. Make sure the shaft is clean, straight and smooth. It should not be attached to the impeller. They should be to seperate pieces. Make sure that the impeller is undamamged. The magnet should be attached to the bottom of the impeller blades. If the impeller has seperated inside the warranty period, contact Hydor USA Customer Service for a replacement.If after checking all of the above, then the issue is probably with the motor. If this is the case and the unit is within the warranty period, then you need to contact Hydor USA Customer Service.